photosynthesis - Energy Energy powers everything on Earth...

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Unformatted text preview: Energy Energy powers everything on Earth powers everything on Earth necessary for life necessary for life physically shapes Earth physically shapes Earth What is energy? What is energy? ability to perform ability to perform work work Different Forms of Energy Potential energy Kinetic energy Chemical Electrical Solar Heat Nuclear Ocw.mit.edu Alistaircraven.com Bp1blogger.com 1. First Law of Thermo- dynamics-energy is neither created nor destroyed changed from 1 form to another Trc.ucdavis.edu Metabolism & Energy Metabolism – sum of all chemical rxns in cell Endergonic Reactions endergonic or anabolic – stores energy in products ATP – universal energy molecule Exergonic Reactions exergonic or catabolic – releases energy by breaking down molecules ATP -> ADP + P + energy • Energy Relationships Energy Relationships SUN – ultimate source of energy Plants/producers – energy from sun to make sugars Consumers – eat plants/others for energy Decomposers –break down dead material PHOTOSYNTHESIS...
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